On Sat, 23 Feb 2008 00:34:06 -0800 (PST) bugme-daemon@bugzilla.kernel.org wrote:

http://bugzilla.kernel.org/show_bug.cgi?id=10071

           Summary: kernel hang in inet_init
           Product: Networking
           Version: 2.5
     KernelVersion: 2.6.25 rc2 latest git
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: IPV4
        AssignedTo: shemminger@linux-foundation.org
        ReportedBy: yannick.dirou@axetic.com


Distribution:ubuntu hardy
Hardware Environment:dell dimension 5150
Problem Description:
kernel hang mostly but boot slowly sometimes

Steps to reproduce:
boot

when the computer manage to boot, inet_init last some time:
[    1.725306] NET: Registered protocol family 2
[    6.825384] IP route cache hash table entries: 32768 (order: 5, 131072
bytes)
[    6.825803] TCP established hash table entries: 131072 (order: 8, 1048576
bytes)
[    6.826691] TCP bind hash table entries: 65536 (order: 9, 2359296 bytes)
[    6.836160] TCP: Hash tables configured (established 131072 bind 65536)
[    6.836255] TCP reno registered
[    7.081569] initcall 0xc03b8920: inet_init+0x0/0x3aa() returned 0.
[    7.081569] initcall 0xc03b8920 ran for 5106 msecs: inet_init+0x0/0x3aa()

When booting with acpi=ht it works:
[0.124668] Calling initcall 0xc03b8920: inet_init+0x0/0x3aa()
[    0.124867] NET: Registered protocol family 2
[    0.288067] IP route cache hash table entries: 32768 (order: 5, 131072
bytes)
[    0.288856] TCP established hash table entries: 131072 (order: 8, 1048576
bytes)
[    0.289739] TCP bind hash table entries: 65536 (order: 9, 2359296 bytes)
[    0.299156] TCP: Hash tables configured (established 131072 bind 65536)
[    0.299250] TCP reno registered
Feb 23 09:10:28 tiyann kernel: [    0.162267] initcall 0xc03b8920:
inet_init+0x0/0x3aa() returned 0.
[    0.162383] initcall 0xc03b8920 ran for 33 msecs: inet_init+0x0/0x3aa()

there seem to be a weird interaction between acpi and inet_init

any hint on how to provide better information
thanks